85 entries under adjective topic. ×

12
feeble(strong, fit, ineffective)
12
unhealthy
11
ill
9
insane(sound, sensible, foolish, ill)
7
harmful(good, harmless)
6
noxious(sweet, injurious, deadly)
5
infirm(weak, sound, sick)
5
damaging
5
fragile
4
sick(healthy, well)
4
baneful
4
deleterious
4
delicate(strong, hard, harsh, sickly)
4
haggard(fresh, weakened, worn)
4
injurious(good, beneficial)
4
morbid(nasty, gloomy, sickly)
4
run-down(sound, shape, shabby)
4
sallow(clear, pale, unhealthy)
4
unfit
4
unwell
10 years ago|7.4k views|share |citing 
APASmart Define. (2016). healthy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/healthy/thesaurus/antonyms
ChicagoSmart Define. 2016. "healthy thesaurus" https://smartdefine.org/healthy/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, healthy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/healthy/thesaurus/antonyms>.
MLASmart Define. "healthy thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/healthy/thesaurus/antonyms>